53291090 has 16 divisors (see below), whose sum is σ = 101566872. Its totient is φ = 20062464.

The previous prime is 53291089. The next prime is 53291111. The reversal of 53291090 is 9019235.

It can be written as a sum of positive squares in 4 ways, for example, as 53042089 + 249001 = 7283^2 + 499^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156569 + ... + 156908.

Almost surely, 2^53291090 is an apocalyptic number.

53291090 is a deficient number, since it is larger than the sum of its proper divisors (48275782).

53291090 is a wasteful number, since it uses less digits than its factorization.

53291090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313501.

The product of its (nonzero) digits is 2430, while the sum is 29.

The square root of 53291090 is about 7300.0746571525. The cubic root of 53291090 is about 376.3150040555.

The spelling of 53291090 in words is "fifty-three million, two hundred ninety-one thousand, ninety".